340668 has 18 divisors (see below), whose sum is σ = 861224. Its totient is φ = 113544.

The previous prime is 340661. The next prime is 340687. The reversal of 340668 is 866043.

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4696 + ... + 4767.

2³⁴⁰⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

340668 is an abundant number, since it is smaller than the sum of its proper divisors (520556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

340668 is a wasteful number, since it uses less digits than its factorization.

340668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9473 (or 9468 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 340668 is about 583.6677136865. The cubic root of 340668 is about 69.8409996590.

The spelling of 340668 in words is "three hundred forty thousand, six hundred sixty-eight".